Closet-tank.



L. LINDENBERG.

GLOSBT TANK.

APPLICATION FILED oo'r. 23 7.

907,384. Patented Dec. 22, 1908.

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LEO LINDENBERG, COLUMBUS, OHIO.

CLOSET-TANK.

specification caf-Letters Patent.

Patented Dec. 22A, 1:908.y

Application led October 23, 1907. Serial No. 398.701.

To all whom/25 may concern:

Be 1t known that I, LEO LINDENBERG, citizen of the'United States,residing at Colum- -bus,`in the county of Franklin and State of Ohio,have invented certain new and useful Improvements in Closet-Tanks, ofwhich the followingis a specification.

My inventionrelates to the improvement4 of closet tanks of that classwhich are used as reservoirs for flushing purposes and the ob- 'jects ofmy invention are to provide a tank of this character which isconstructed of metal and at the saine tiine obviate the objectionsheretofore existing tothe production of all metal tanks, theseobjections consist-ing ot', vexpense of construction, tendency of the 1nner casing to sweat, excessive Weight etc.y

These objects l accomplish in the manner illustra-ted in theaccompanying drawing, in Which- Figure l is a sectional view on linefa-z of Fig. 2, Fig. 2 is a side elevation of the tank With the outer(3a-siner removed and showing for the-sake. ot clearness a portion ofthe in ner casing broken away, and, Fig. 3 is a cen# tral verticalsection of the tank. p

Similar numerals refer to sirrrilar part-s throughout the several views,

In carrying out my invention, I'employ an upright tank or inner casing 1ot metal or other suitable Waterproofinateriab this casingl being asshovvn'iorined with closed sides and Vbottoni and mounted upon a baseplate 2 which may bev of Wood, if desired.

3 represents an external casing` which receives the internal casing andhas its tor- Ward side and endsv arranged at a distance from, butparallel with the :torn-'ard side and ends of the inner casing. vAsshown in the drawing, the ends of' this external casingT are providedith inturned extensions 3a which overlap the end portions of the internal casing 1. The s ace 3b Which lies be tween the forward si e and endsof the cX- ternal 'ca-sing and internal casing, is closed atits upperend as shown in Fig. 3.

4 re crinipe metal which as indicated in the drawing, is .arrangedvertically Within the esents a -sheet Yof corrugated crm spa-ce 3Pbetween the inner and outer tank casings, this metallic 'iilling'havingits projecting portions alternately bearing against the outer surtaceofthe tank casing 1 and the inner surface o1' the casing` 3. lt will beob.- served that the corrugated or crimped metal plate 4, is'exte'ndedacrossthc back oi the inner casing, thereby strengthening the four Wallsof said casing. i

The bracing or strengthening'quality of corrugated metal is Well knownand in the presen'p case, it will be observed that the corrugated sheet4 not only' serves the purpose of forming a strong and durable bracingbetween the walls of the two c'asings, but that it forms a comparativelylight artial lill'mg for the space between the Wal s'of `the twocasings, which is of a material not easily ailfected by'danipness ormoisture.

It will be observed that it the tlues or channels forined by thecoriugations of the sheet .4 are left open, the air will be free toenter t-hese openings and willA to some extent absorb moisture which maytend to collect on the outer surface of the inner easing. In order toAinsure this absorption, however,- oi moisture, l may lill the. saidcorrugation channelsI with suitable absorbent material `which willreferabbbe a'nonwonductor of heat, such tor instance as mineral Wool,asbestos or similar material j. Y

By referring toFig. 3, itWill .be seen'that the bottom 2 is secureiddirectly to tlielower edge ol'. the corrugated s'he'et'i, by nails orother fastening devices l0.

It Will be understood. thata construction suchA as I have lescribed willresult in they production ot a closet tank of strong'. durable materialat reasonable cost of inanuiactiu'e.

W hat l claim, is:

l. ln a closet tank, the combination with an inner casing adapted tocontain' Water 'and an external metallic casing, ot' corrugated orcrimped filling ot sheet metal yarranged between said internal andexternal casings, and llin'g of absorbent and non-con ducting materialwithin the channels forniedbvithe corrugations of said intermediate.sheet.

Z. ln adevice of the character described the combinationof an 'innerbox-like tank, of and a bottom secured to said corrugated an outereasing spaced from said tank, a member and upon which said tank rests.10 spacing and bracing member formed of In testimony whereof I ax mysignature crimped or corrugated sheet metal which lies in presence oftwo Witnesses.

vbetween the tank and the outer casing,l an LEO LINDENBERG.

absorbent lling material Which fills the Witnesses: spaces between thetank and the outer casing L. CARL STOUGHTON, upon `both sides ofthegeorrugated member A'. L. PHELPs.

